Microsoft today announced all new type cover adding a better type feel,finger print sensor,40% larger trackpad and more, and it is compatible with both Surface Pro 3 and Surface Pro 4.

It's also the thinnest and lightest type cover yet, and the keys are quieter too,with more space in-between for the better feel.
As far as trackpad is concerned, Microsoft said it's "highest precision glass trackpad"with 40% larger size than the previous one. It also features 5 point multi-touch.
All this amazing features comes for only $130 and will be available in 6 colours.